Step-by-step explanation:
first distribute the first equation
8(2x) - 8(14) +13 = 4x -27
16x - 112 +13 = 4x -27
then combine like terms
16x - 99 = 4x -27
subtract 4x from both sides
12x - 99 = -27
add 99 to both sides
12x = 72
divide both sides 12 to isolate the x
x = 72/12 = 6
-4-8 = -12 Becuase -4 plus -8 is -12
Answer:
answer is in the attached picture
Step-by-step explanation:
To construct the box-and-whisker plot from the given data we first need to find the 3rd quartile.
To find the 3rd quartile we will use the interquartile range and 1st quartile.
Interquartile range = 3rd quartile - 1st quartile
(substitute the values given in the question)
3 = 3rd quartile - 6
3rd quartile = 3 + 6
3rd quartile = 9
hence we now have the complete data to construct the box-and-whiskers plot.
The plot is in the attached picture.